*SUPPORT*
IN: lug fep kiki OUT: PURPLE GREEN PURPLE
IN: tufa fep kiki OUT: YELLOW GREEN YELLOW
IN: tufa zup OUT: YELLOW YELLOW
IN: gazzer fep gazzer OUT: BLUE BLUE BLUE
IN: tufa fep lug wif tufa OUT: YELLOW PURPLE YELLOW YELLOW YELLOW
IN: tufa gazzer wif kiki OUT: YELLOW BLUE GREEN GREEN
IN: gazzer wif kiki OUT: BLUE GREEN GREEN
IN: kiki zup OUT: GREEN GREEN
IN: gazzer zup wif tufa wif tufa wif kiki OUT: BLUE BLUE YELLOW YELLOW YELLOW YELLOW GREEN GREEN
IN: lug fep tufa OUT: PURPLE YELLOW PURPLE
IN: tufa OUT: YELLOW
IN: tufa gazzer fep lug wif gazzer OUT: YELLOW BLUE PURPLE BLUE BLUE BLUE
IN: gazzer OUT: BLUE
IN: lug wif kiki OUT: PURPLE GREEN GREEN

*QUERY*
IN: tufa tufa fep kiki OUT: YELLOW YELLOW GREEN YELLOW
IN: lug OUT: PURPLE
IN: kiki fep tufa OUT: GREEN YELLOW GREEN
IN: gazzer zup OUT: BLUE BLUE
IN: tufa wif lug OUT: YELLOW PURPLE PURPLE
IN: kiki OUT: GREEN
IN: lug tufa OUT: PURPLE YELLOW
IN: lug zup OUT: PURPLE PURPLE
IN: gazzer tufa lug zup OUT: BLUE YELLOW PURPLE PURPLE
IN: lug kiki zup OUT: PURPLE GREEN GREEN

*GRAMMAR*
gazzer -> BLUE 
 tufa -> YELLOW 
 lug -> PURPLE 
 kiki -> GREEN 
 x1 wif u1 -> [x1] [u1] [u1] 
 u1 fep u2 -> [u1] [u2] [u1] 
 u1 zup -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 